noun \ˈrē-mər\

Definition of REAMER

:  one that reams: as
a :  a rotating finishing tool with cutting edges used to enlarge or shape a hole
b :  a fruit juice extractor with a ridged and pointed center rising from a shallow dish

Illustration of REAMER

First Known Use of REAMER



noun \ˈrē-mər\   (Medical Dictionary)

Medical Definition of REAMER

: an instrument used in dentistry to enlarge and clean out a root canal


noun    (Concise Encyclopedia)

Rotary cutting tool of cylindrical or conical shape, used for enlarging and finishing to accurate dimensions holes that have been drilled, bored, or cored. A reamer cannot be used to start a hole. All reamers have lengthwise flutes or grooves; either the sides of the tool or the tip may be used for cutting. Reamers are made from high-carbon steel, high-speed steel, or cemented carbides.


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